diff --git a/src/osg/Uniform.cpp b/src/osg/Uniform.cpp
index 50ab08552..92b12a1fe 100644
--- a/src/osg/Uniform.cpp
+++ b/src/osg/Uniform.cpp
@@ -123,7 +123,7 @@ void Uniform::setNumElements( unsigned int numElements )
 void Uniform::allocateDataArray()
 {
     // if one array is already allocated, the job is done.
-    if( _floatArray.valid() || _doubleArray.valid() || _intArray.valid() || _uintArray.valid() ) return;
+    if( _floatArray.valid() || _doubleArray.valid() || _intArray.valid() || _uintArray.valid() || _int64Array.valid() || _uint64Array.valid()) return;
 
     // array cannot be created until _type and _numElements are specified
     int arrayNumElements = getInternalArrayNumElements();
@@ -147,6 +147,14 @@ void Uniform::allocateDataArray()
                 _uintArray = new UIntArray(arrayNumElements);
                 return;
 
+            case GL_INT64_ARB:
+                _int64Array = new Int64Array(arrayNumElements);
+                return;
+
+            case GL_UINT64_ARB:
+                _uintArray = new UInt64Array(arrayNumElements);
+                return;
+
             default:
                 break;
         }
@@ -241,7 +249,7 @@ bool Uniform::setArray( UInt64Array* array )
     if( !array ) return false;
 
     // incoming array must match configuration of the Uniform
-    if( getInternalArrayType(getType())!=GL_UNSIGNED_INT || getInternalArrayNumElements()!=array->getNumElements() )
+    if( getInternalArrayType(getType())!=GL_UNSIGNED_INT64_ARB || getInternalArrayNumElements()!=array->getNumElements() )
     {
         OSG_WARN << "Uniform::setArray : incompatible array" << std::endl;
         return false;
@@ -262,7 +270,7 @@ bool Uniform::setArray( Int64Array* array )
     if( !array ) return false;
 
     // incoming array must match configuration of the Uniform
-    if( getInternalArrayType(getType())!=GL_UNSIGNED_INT || getInternalArrayNumElements()!=array->getNumElements() )
+    if( getInternalArrayType(getType())!=GL_UNSIGNED_INT64_ARB || getInternalArrayNumElements()!=array->getNumElements() )
     {
         OSG_WARN << "Uniform::setArray : incompatible array" << std::endl;
         return false;